Safety-envelop.



J. E. SWANSON. SAFETY ENVELOP.

APPLIGATION rum) 11.12, 191sv 1,1 24,35 Patented Jan. 12, 1915v 1 7 15wuemkoz JESwanson.

m5 NORRIS PETERS (0., PHOTOJJTHO wasnmcmn. n c.

JOHN E. SWANSON, (3F CENTERVILLE, SOUTH DAKOTA.

SAFETY-ENVELOP.

Application filed April 12, 1913.

To all 207mm it may concern Be it known that I, JOHN E. a citizen of theUnited States, Center-ville, in the county of Turner and State of SouthDakota, have invented certain new and useful Improvements inSafety-Envelops; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to Which it appertains to make and use thesame.

This invention relates to new and useful improvements in safetyenvelope.

As its principal object, this invention contemplates the provision ofmeans for sealing and attaching the correspondence interiorly of theenvelop and exteriorly holding the closure flaps in the inclosedrelation.

The above and additional objects are accomplished by such means as areillustrated in the accompanying drawings, described in the followingspecification and then more particularly pointed out in the claims whichare appended hereto and form a part of this application.

With reference to the drawings, wherein I have illustrated the preferredembodiment of my invention as it is reduced to practice, and throughoutthe several views of which similar reference numerals designatecorresponding parts: Figure 1 is a plan view of the blank from which theenvelop is constructed. Fig. 2 is a plan view illustrating the end flapin folded position; and Fig. 3 is a plan view illustrating the completefolded position of the various flaps of the envelop.

Proceeding now to the description of the drawings, the blank from whichthe envelop is constructed includes a main body portion 1 substantiallyrectangular in shape, but which may be made in any desired shape and ofany required dimensions.

Extending from the end edge 2 of the member 1 is a semicircular flap 3provided with a locking tongue 4:, adapted to be inserted, as at 5 inFig. 2, in the lateral slit formed in the end flap 6, carried on the endedge 7 of the member 1. The flap 6 is provided on its longitudinal edgeswith the SwANsoN, residing at Specification of Letters Patent.

Patented Jan. 12, 1915. Serial No. 760,787.

sealing flaps 8 and 9, which may be gummed for the obvious purpose ofholding the cor respondence in place on the inner face of the flap 6.The longitudinal edges of the member I carry the side flaps 10 and 11which are preferably tapered outwardly and carry at their outerterminals laterally extending locking tongues 12 and 13, the member 12being arranged on one side of the lateral center line of the member 1and the member 13 being arranged on the other side. The members 12 and13 each terminate adjacent the center line above referred to in lockingtongues 14 and 15, formed by slitting the members 11 and 10 on the lines16 and 17, as at 18 and 19.

In use, the correspondence is placed on the flap 6, the gummed members 8and 9 are moistened and are folded to engage the letter or othercorrespondence. The flap 6 is then folded inwardly on the edge 7 tobring the correspondence within the flap 6 and the body portion 1. Theflap 3 is then folded on the line 2 and the tongue 4: is inserted in thelateral slit 5 of the flap 6. It then remains to fold the members 10 and11 on the longitudinal edges of the blank and to lock the tongues 14 and15 by merging the slits 18 and 19 as illustrated in Fig. 3.

In reduction to practice, I have found that the form of my invention,illustrated in the drawings and referred to in the above description, asthe preferred embodiment, is the most efficient and practical; yetrealizing that the conditions concurrent with the adoption of my devicewill necessarily vary, I desire to emphasize the fact that various minorchanges in details of construction, proportion and arrangement of partsmay be resorted to, when required, without sacrificing any of theadvantages of my invention. as defined in the appended claim.

What is claimed is:

The hereindescribed safety envelop comprising a body portion, a foldableflap integrally connected to one edge of said body portion, said flaphaving foldable and gummed margins to inclose the correspondence, andsaid body portion adapted to be folded over said flap, top and bottomfoldsitely disposed slits parallel with the sides of the body portionwhen folded,-said slits adapted to be interlocked, and a flap extendingfrom the side edge of the body por-' tion and provided with a tongue toengage a slit in the first mentioned flap. 10

In testimony whereof I aifix my signature in presence of two witnesses.

JOHN E. SWANSON. Witnesses:

GEo. H. WEEKS, JAMES MEE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner 01 Patents,

Washington, D. G.

